Office is Mine (The)

When a new hire seemingly threatens his social standing at work, the usually amicable Zac begins to unravel. Fueled by paranoia that he’s being replaced, Zac finds himself propelled on a collision course with the new-comer. As the situation becomes increasingly unpredictable and violent, only one thing is for sure: the office isn’t big enough for both of them.

There was a trailer...but, it has since disappeared.